Analysis of Wireless Power Transmission System with Sandwiched Structure

Currently, a “sandwiched structure” is being used for the wireless power transmission system, which is suitable for personal mobility. The sandwiched structure is constructed with two power receiving coils sandwiched between two power transmission coils. This structure stabilizes power transmission,...

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Bibliographic Details
Published in:Denki Gakkai ronbunshi. D, Sangyō ōyō bumonshi 2022/08/01, Vol.142(8), pp.561-568
Main Authors: Kitahara, Makoto, Suzuki, Yukihisa, Taki, Masao, Akiyama, Misato, Sasaki, Hidekatsu, Sano, Hiroyasu
Format: Article
Language:Japanese
Subjects:
circuit analysis
Circuits
Coils
Inductance
magnetic resonance method
mutual inductance
personal mobility
Wireless power transmission
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Summary:Currently, a “sandwiched structure” is being used for the wireless power transmission system, which is suitable for personal mobility. The sandwiched structure is constructed with two power receiving coils sandwiched between two power transmission coils. This structure stabilizes power transmission, regardless of changes in position of the power receiving and power transmission coils. However, detailed circuit analysis of this structure has not been performed, and analysis considering the mutual inductance of multiple coils is required.In this study, by clarifying the six mutual inductances of the four coils used in the sandwiching structure and performing circuit analysis, the effects on the efficiency were verified. We also performed experiments to prove that the theoretical analysis was correct.
ISSN:0913-6339
2187-1094
1348-8163
2187-1108
DOI:10.1541/ieejias.142.561